Received: 2 February 2021
Accepted: 23 May 2021
First Online: 21 June 2021
: The clinical material used in this study was part of the retrospective and investigator-blinded study previously published by Kollenda et al. 2019 [CitationRef removed] for which ethical approval was waived by the Ethics Committee of the Medical Association of Hamburg, Germany (registration number WF-023/18). All procedures to obtain the bacterial isolate collection for this study were in accordance with the national Tunisian and German ethical standards and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent for the study using the anonymized <i>Kp</i> isolate collection was waived as part of the vote of the Ethics Committee of the Medical Association of Hamburg, Germany (registration number WF-023/18).The use of the <i>Kp</i> strains was authorized by the Tunisian coauthors of the study (S.M., M.F., and M.B.M.) in a MTA between IMB and MHT.
: Not applicable.
: The authors declare that they have no competing interests.